[Show abstract][Hide abstract] ABSTRACT: An overview of the crystal structures and physical properties of the recently discovered iron–platinum–arsenide superconductors, Ca10(PtnAs8)(Fe2−xPtxAs2)5 (n=3n=3 and 4), which have a superconducting transition temperature up to 38 K, is provided. The crystal structure consists of superconducting Fe2As2 layers alternating with platinum–arsenic layers, PtnAs8. The upper critical field Hc2Hc2, hydrostatic pressure dependence of superconducting transition temperature TcTc, and normal-state magnetic susceptibility are reported.
Full-text · Article · Apr 2012 · Solid State Communications
[Show abstract][Hide abstract] ABSTRACT: We report superconductivity in novel iron-based compounds
Ca10(PtnAs8)(Fe2-xPtxAs2)5 with n = 3 and 4. Both compounds crystallize in
triclinic structures (space group P-1), in which Fe2As2 layers alternate with
PtnAs8 spacer layers. Superconductivity with a transition temperature of 38 K
is observed in the n = 4 compound with a Pt content of x ~ 0.36 in the Fe2As2
layers. The compound with n = 3 exhibits superconductivity at 13 K.
Full-text · Article · Jul 2011 · Journal of the Physical Society of Japan